Pregnancy symptoms can begin as early as six to 12 days after conception, according to WebMD, when some women may experience cramping, bleeding or both symptoms from the embryo implanting into the uterus. Ovulation and c... More »

Some early symptoms of pregnancy include nausea with or without vomiting, fatigue, food aversions or cravings, swollen and tender breasts, and increased urination. These symptoms, in addition to a missed period, can begi... More » Health Women's Health Pregnancy

According to WedMD, early symptoms of pregnancy include spotting, cramping, breast changes and fatigue. However, the only way to know if a woman is truly pregnant is to take a pregnancy test. More »

Implantation of the fertilized embryo in the uterus causes light bleeding during pregnancy, according to WebMD. Known as implantation bleeding, it is normal during early pregnancy. A miscarriage or an ectopic pregnancy c... More »

According to WebMD, the symptoms of pregnancy at four weeks are a missed period and possible light spotting as implantation of the embryo occurs in the uterus. When a woman is four weeks pregnant, the egg containing the ... More »

It is possible that some women can present pregnancy symptoms within a week of conception, according to the American Pregnancy Association. However, other women often do not have symptoms this early. Pregnancy signs can ... More »

WebMD explains that although a tubal ligation is a permanent form of birth control, pregnancy occurs in less than 2% of women who have had this procedure. The procedure is thus not a perfect preventive measure to stop pr... More » Health Women's Health Pregnancy